Github user NicoK commented on a diff in the pull request:
https://github.com/apache/flink/pull/3348#discussion_r105898097
--- Diff:
flink-runtime/src/main/java/org/apache/flink/runtime/taskmanager/Task.java ---
@@ -389,11 +389,20 @@ public Task(
++counter;
}
+ invokableHasBeenCanceled = new AtomicBoolean(false);
+
+ // finally, create the executing thread, but do not start it
+ executingThread = new Thread(TASK_THREADS_GROUP, this,
taskNameWithSubtask);
+
+ // add metrics for buffers
+ this.metrics.getIOMetricGroup().initializeBufferMetrics(this);
+
// register detailed network metrics, if configured
if
(tmConfig.getBoolean(TaskManagerOptions.NETWORK_DETAILED_METRICS_KEY)) {
- MetricGroup networkGroup =
metricGroup.addGroup("Network"); // same as in
MetricUtils.instantiateNetworkMetrics()
- MetricGroup outputGroup =
networkGroup.addGroup("Output"); // this is optional
- MetricGroup inputGroup =
networkGroup.addGroup("Input"); // this is optional
+ // similar to MetricUtils.instantiateNetworkMetrics()
but inside this IOMetricGroup
+ MetricGroup networkGroup =
this.metrics.getIOMetricGroup().addGroup("Network");
--- End diff --
ok, thanks for the clarification - I'll keep it the way it is now though
since this "modified" code is actually new in this PR and this way at least, it
is somewhat consistent with the code from MetricUtils
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